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Archive for November 2009

recording audio playing through speakers

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wanted to record flash audio playing in a web browser.

Go into the terminal and type:
sudo apt-get install pavucontrol
then when that’s finished type:
then start your audio and in another terminal type:
arecord -c 2 -f cd test

note that the pavucontrol (PulseAudio Volume Control) did not need to be running while recording (or loaded before or anything), but I did have to change the default Input Device from “Internal Audio Analog Stereo” to “Monitor of Internal Audio Analog Stereo”.


Written by sumofungus

November 16, 2009 at 7:45 AM

Posted in computers, linux

upgrade to ubuntu karmic koala (9.10) and still connect to a mythtv 0.21 backend.

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Having upgraded my laptop to Ubuntu 9.10 to get the Intel graphics card working with Flash I found that mythtv in the karmic libraries was at 0.22 (got the usual schema error). This stopped it from connecting to my mythbackend server that is still running at 0.21.

Rather than upgrade all other (happily working) machines on my network to karmic I took the following steps;

1. Removed all mythtv packages.
2. Added the Jaunty repos back in;

deb jaunty main universe restricted multiverse
(taken from

3. Installed mythlib-0.21-0 & mythcommon 0.21 (adding these separatly helped avoid some dep issues).
4. Installed and locked the version of mythfrontend at v0.21+fixes19961-0ubuntu8 (jaunty).

I would be interested if anyone has problems getting this working as I have a few other machines to do this on eventually.

Written by sumofungus

November 15, 2009 at 12:32 PM

Posted in computers, linux, mythtv